Answer:
135 ft^2
Step-by-step explanation:
7yd = 7*3 feet = 21 feet

Answer:
Yes, there is a transformation that maps shape I onto shape IV. Reflecting shape I across the x-axis maps it onto shape IV.
Step-by-step explanation:
edmentum.
Answer:

Step-by-step explanation:

In 2 years theirs 17520 in total!
Answer:
B. Commutative
Step-by-step explanation:
He can do that because it's a sum